{"schemaVersion":1,"asset":"SOL","reportDate":"2026-09-08","timestamps":{"currentSnapshotAt":"2026-09-08T16:30:00+00:00","previousSnapshotAt":"2026-09-07T16:30:00+00:00","generatedAt":"2026-09-08T17:01:35+00:00"},"comparison":{"status":"available","note":null},"provenance":{"reportArtifact":"published daily report","sourceReport":"SOL","sourceReportHref":"/reports/sol/2026-09-08","source":"Derivasys proprietary historical SVI surface database","comparison":"Nearest successful surface snapshots approximately 24 hours apart","rrConvention":"25-delta call IV minus 25-delta put IV","bfConvention":"Average 25-delta wing IV minus ATM forward IV","fixedTenors":"Fixed-tenor measures are published only when listed expiries bracket the target at both comparison snapshots. Targets outside either observable range are suppressed, not extrapolated; headline rankings use only supported tenors.","realisedVolatility":null},"tenors":[{"tenor":"1W","targetExpiry":1789489800150,"availability":"available","unavailableReason":null,"atmIv":{"current":55.35,"previous":52.9,"change":2.45,"percentChange":4.63},"rr25":{"current":1.28,"previous":0.12,"change":1.16,"percentChange":966.67},"bf25":{"current":4.26,"previous":3.96,"change":0.3,"percentChange":7.58}},{"tenor":"2W","targetExpiry":1790094600150,"availability":"available","unavailableReason":null,"atmIv":{"current":53.72,"previous":52.93,"change":0.79,"percentChange":1.49},"rr25":{"current":1.64,"previous":1.18,"change":0.46,"percentChange":38.98},"bf25":{"current":4.04,"previous":3.92,"change":0.12,"percentChange":3.06}},{"tenor":"1M","targetExpiry":1791477000150,"availability":"available","unavailableReason":null,"atmIv":{"current":52.81,"previous":52.38,"change":0.43,"percentChange":0.82},"rr25":{"current":2.11,"previous":1.78,"change":0.33,"percentChange":18.54},"bf25":{"current":4.19,"previous":4.1,"change":0.09,"percentChange":2.2}},{"tenor":"3M","targetExpiry":1796747400150,"availability":"available","unavailableReason":null,"atmIv":{"current":51.79,"previous":51.83,"change":-0.04,"percentChange":-0.08},"rr25":{"current":2.84,"previous":2.74,"change":0.1,"percentChange":3.65},"bf25":{"current":4.76,"previous":4.92,"change":-0.16,"percentChange":-3.25}},{"tenor":"6M","targetExpiry":1804609800150,"availability":"unavailable","unavailableReason":"The target tenor falls outside the listed-expiry range at one or both snapshots; extrapolated values are suppressed.","atmIv":{"current":null,"previous":null,"change":null,"percentChange":null},"rr25":{"current":null,"previous":null,"change":null,"percentChange":null},"bf25":{"current":null,"previous":null,"change":null,"percentChange":null}},{"tenor":"9M","targetExpiry":1812472200150,"availability":"unavailable","unavailableReason":"The target tenor falls outside the listed-expiry range at one or both snapshots; extrapolated values are suppressed.","atmIv":{"current":null,"previous":null,"change":null,"percentChange":null},"rr25":{"current":null,"previous":null,"change":null,"percentChange":null},"bf25":{"current":null,"previous":null,"change":null,"percentChange":null}},{"tenor":"1Y","targetExpiry":1820421000150,"availability":"unavailable","unavailableReason":"The target tenor falls outside the listed-expiry range at one or both snapshots; extrapolated values are suppressed.","atmIv":{"current":null,"previous":null,"change":null,"percentChange":null},"rr25":{"current":null,"previous":null,"change":null,"percentChange":null},"bf25":{"current":null,"previous":null,"change":null,"percentChange":null}}],"realisedVolatility":null,"realisedVolatilityUnavailableReason":"Canonical SOL index coverage for 7d is incomplete: expected 10080 one-minute returns, found 10044 (99.6429% coverage); returns spanning missing minutes are excluded"}